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Refraction — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Refraction
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T17:39:24.450Z
SHA-256 of the archived text: 03940aea2abf46503bdecd27b559c6c0144b2d1caabbfc24b78ffdd9201fca20
Stable URL of this page: https://metraipolis.com/documento/dc_4e45928dd9df

How to cite

Refraction — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Refraction (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_4e45928dd9df (Metraipolis archive dc_4e45928dd9df, sha256 03940aea2abf46503bdecd27b559c6c0144b2d1caabbfc24b78ffdd9201fca20)

BibTeX

@misc{dc4e45928dd9df,
  title = {Refraction — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Refraction},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_4e45928dd9df; sha256 03940aea2abf46503bdecd27b559c6c0144b2d1caabbfc24b78ffdd9201fca20},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Refraction. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction. How much a wave is refracted is determined by the change in wave speed and the initial direction of wave propagation relative to the direction of change in speed. Optical prisms and lenses use refraction to redirect light, as does the human eye. The refractive index of materials varies with the wavelength of light, and thus the angle of the refraction also varies correspondingly. This is called dispersion and allows certain prisms and raindrops in rainbows to divide white light into its constituent spectral colors.

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «optics»).
Fonte: Wikipedia in inglese, voce «Refraction» — https://en.wikipedia.org/wiki/Refraction
Wikidata Q72277 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q72277
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Refraction?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1372828267, consultata il 2026-10-15T16:33:44.243Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 41f384aabcd1a6b8d40b0d1e84cba4b71e89a97deb9b9fd120b55c877c5d96fb